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San Mateo, CA Area Code
San Mateo, California (population 103,337) uses area code 650.
Carriers with San Mateo numbers
126 prefixes are assigned to the San Mateo exchange: 32% mobile, 20% VoIP and cable, 48% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Pacific Bell) | 49 |
| AT&T Mobility | 18 |
| T-Mobile | 15 |
| Onvoy (Sinch) | 7 |
| Verizon Wireless | 7 |
| Verizon Business (MCImetro) | 6 |
| Lumen (Level 3) | 6 |
| Bandwidth | 3 |
Area codes used in San Mateo
| Area code | Prefixes serving San Mateo | Main carriers in this code |
|---|---|---|
| 650 | 126 | AT&T (Pacific Bell), AT&T Mobility, T-Mobile |
San Mateo phone number prefixes
Numbers starting with these first six digits were originally assigned to the San Mateo exchange.
650-200Twilio650-202Utility Telecom Group650-212AT&T (Pacific Bell)650-217Spok650-218T-Mobile650-222T-Mobile650-227Verizon Business (MCImetro)650-235Verizon Business (MCImetro)650-240Onvoy (Sinch)650-242Lumen (Level 3)650-245AT&T Mobility650-274T-Mobile650-281T-Mobile650-286AT&T (Pacific Bell)650-287AT&T (Pacific Bell)650-288Lumen (Level 3)650-292Lumen (Level 3)650-293AT&T (Pacific Bell)650-294AT&T (Pacific Bell)650-295AT&T (Pacific Bell)650-312AT&T (Pacific Bell)650-315T-Mobile650-340AT&T (Pacific Bell)650-341AT&T (Pacific Bell)650-342AT&T (Pacific Bell)650-343AT&T (Pacific Bell)650-344AT&T (Pacific Bell)650-345AT&T (Pacific Bell)650-346T-Mobile650-347AT&T (Pacific Bell)650-348AT&T (Pacific Bell)650-349AT&T (Pacific Bell)650-350AT&T (Pacific Bell)650-356AT&T (Pacific Bell)650-357AT&T (Pacific Bell)650-358AT&T (Pacific Bell)650-371Spok650-372AT&T (Pacific Bell)650-373AT&T (Pacific Bell)650-375AT&T (Pacific Bell)650-376Lumen (Level 3)650-377AT&T (Pacific Bell)650-378AT&T (Pacific Bell)650-389Verizon Business (MCImetro)650-393Lumen (Level 3)650-398Verizon Wireless650-401AT&T (Pacific Bell)650-403Verizon Business (MCImetro)650-418Verizon Wireless650-425Verizon Business (MCImetro)650-430T-Mobile650-431T-Mobile650-432AT&T (Pacific Bell)650-435Verizon Wireless650-436AT&T Mobility650-437Bandwidth650-445T-Mobile650-458Astound Broadband650-477Verizon Wireless650-483AT&T Mobility650-484AT&T Mobility650-504AT&T Mobility650-513AT&T (Pacific Bell)650-514Lumen (Level 3)650-520T-Mobile650-522AT&T (Pacific Bell)650-523Onvoy (Sinch)650-524AT&T (Pacific Bell)650-525AT&T (Pacific Bell)650-532Tpx Communications650-533Metropcs650-539T-Mobile650-541AT&T Mobility650-544T-Mobile650-548AT&T (Pacific Bell)650-554AT&T (Pacific Bell)650-558AT&T (Pacific Bell)650-570AT&T (Pacific Bell)650-571AT&T (Pacific Bell)650-572AT&T (Pacific Bell)650-573AT&T (Pacific Bell)650-574AT&T (Pacific Bell)650-576AT&T Mobility650-577AT&T (Pacific Bell)650-578AT&T (Pacific Bell)650-579AT&T (Pacific Bell)650-581AT&T (Teleport)650-612AT&T (Pacific Bell)650-619AT&T Mobility650-627AT&T (Pacific Bell)650-629Fractel650-638AT&T (Pacific Bell)650-639AT&T Mobility650-642T-Mobile650-645AT&T (Teleport)650-650Onvoy (Sinch)650-653Verizon Business (MCImetro)650-655AT&T (Pacific Bell)650-659Onvoy (Sinch)650-667AT&T Mobility650-678Verizon Wireless650-685AT&T (Pacific Bell)650-696AT&T (Pacific Bell)650-699Fractel650-703AT&T Mobility650-706Onvoy (Sinch)650-715Onvoy (Sinch)650-727Bandwidth650-740AT&T Mobility650-753T-Mobile650-759Verizon Wireless650-762AT&T (Pacific Bell)650-766AT&T Mobility650-773Verizon Wireless650-778Onvoy (Sinch)650-781Bandwidth650-787AT&T Mobility650-844Fractel650-863AT&T Mobility650-865AT&T Mobility650-867AT&T Mobility650-888AT&T Mobility650-918At&T - Local650-921Metropcs650-931Tpx Communications650-954T-Mobile
Nearby cities in area code 650
- Daly City
- Mountain View
- Redwood City
- Palo Alto
- South San Francisco
- Newark
- San Bruno
- Pacifica
- Menlo Park
- Foster City
- Burlingame
- Los Altos
Questions
- What is the area code for San Mateo, CA?
- The area code for San Mateo, California is 650.
- What time zone is San Mateo in?
- San Mateo is in the Pacific time zone.